Air Pressure Pin Penetration Testing Machine "APP Tester"

There are no restrictions on the penetration direction, and in-situ testing on the tunnel wall is possible.

Our company handles the air pressure pin penetration testing machine 'APP Tester', which drives a dedicated pin into concrete using air pressure, measures the penetration depth, and estimates the concrete strength. This is a simple testing method that replaces the pull-out testing machine used for initial strength testing of sprayed concrete, allowing for testing of the concrete sprayed on wall surfaces in situ without the need for test specimens. 【Features】 ■ Easy to handle, with no individual differences in test results ■ Stable penetration force obtained through air pressure ■ Use of two types of pins with different penetration resistances allows for a wide range of strength estimation (Pin A: 10–30 N/mm² Pin B: up to 10 N/mm²) *For more details, please download the PDF or feel free to contact us.

Testing Equipment and Devices